MUS 140 Bibliography.docx - Annotated Bibliography Make Use...

Annotated BibliographyMake Use Of. (2015). One Simple Trick to Amplify Your Smartphone Volume in a Room. Retrieved March 24, 2018, from https:// -amplify-your-smartphone-volume-in-a-room/This article discusses the trick to amplify the sound of your smartphone’s speakers with a bowl. It is reviewed by other researchers. It gives a good overview of what kind of bowl you should use for the experiment and how the size, material, and position of the built-in speaker have an impact on the output of the sound. Physics (2014). How Does a Concave Bowl Amplify Sound?Retrieved March 24, 2018, from https://physics.stackexchange.com/questions/80691/how-does-concave-bowl-amplifies-the-soundThis website explains how the concave part of a bowl helps to amplify the sound from a smartphone’s speaker. The author talks about the redirection of sound energy and how that changes the volume. It is discussed how without the bowl the sound is absorbed and how with the bowl it is different. It also discusses the direction of an iPhone’s speakers

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